Base | Representation |
---|---|
bin | 110000000011111011… |
… | …1100110010000001101 |
3 | 100212101222010201222100 |
4 | 1200013313212100031 |
5 | 3142334033331341 |
6 | 115225314505313 |
7 | 10312445660511 |
oct | 1400767462015 |
9 | 325358121870 |
10 | 103211230221 |
11 | 3a854059980 |
12 | 18005295239 |
13 | 996abb0a78 |
14 | 4dd1730141 |
15 | 2a411053b6 |
hex | 1807de640d |
103211230221 has 48 divisors (see below), whose sum is σ = 163524449088. Its totient is φ = 62211110400.
The previous prime is 103211230219. The next prime is 103211230253. The reversal of 103211230221 is 122032112301.
103211230221 is a `hidden beast` number, since 1 + 0 + 3 + 211 + 230 + 221 = 666.
It is not a de Polignac number, because 103211230221 - 21 = 103211230219 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 103211230194 and 103211230203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103211230211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29145711 + ... + 29149251.
It is an arithmetic number, because the mean of its divisors is an integer number (3406759356).
Almost surely, 2103211230221 is an apocalyptic number.
103211230221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
103211230221 is a deficient number, since it is larger than the sum of its proper divisors (60313218867).
103211230221 is a wasteful number, since it uses less digits than its factorization.
103211230221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5082 (or 5079 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 103211230221 its reverse (122032112301), we get a palindrome (225243342522).
The spelling of 103211230221 in words is "one hundred three billion, two hundred eleven million, two hundred thirty thousand, two hundred twenty-one".
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